کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1725030 | 1520670 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental study of bubble sweep-down in wave and current circulating tank: Part I-Experimental set-up and observed phenomena
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Experimental study of bubble sweep-down in wave and current circulating tank: Part I-Experimental set-up and observed phenomena Experimental study of bubble sweep-down in wave and current circulating tank: Part I-Experimental set-up and observed phenomena](/preview/png/1725030.png)
چکیده انگلیسی
Bubble sweep-down is a significant issue for the oceanographic vessels, which affect the acoustic surveys. Experimental trials, carried out in the Ifremer wave and current circulating tank on a 1/30 model of the Pourquoi pas?, are presented. The results demonstrate that this kind of experimental facility is well suited to study the phenomenon of bubble sweep-down encountered around the bow of a ship under specific conditions. From these results, two kinds of bubble clouds formation have been observed and analysed: bubble clouds generated by vortex shedding and breaking waves. The vortex shedding bubble clouds appear randomly in all the configurations tested, even without waves or motions. This phenomenon is due to the interaction between the turbulent flow and the specific bow shape of the Pourquoi pas?. On the other hand, the breaking wave clouds appear in the presence of relative motions between the free surface and the bow ship and more significantly under wave sollicitations. A complementary paper presents a parametric study carried out to quantify the influence of the test conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 120, 1 July 2016, Pages 78-87
Journal: Ocean Engineering - Volume 120, 1 July 2016, Pages 78-87
نویسندگان
Sylvain Delacroix, Grégory Germain, Benoît Gaurier, Jean-Yves Billard,